Question about 2003 Ford Expedition

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Missfire 2000 expidition

Changed 3 coils over the last 6 mos. is it poss i can still have 2 bad ones according to the trouble codes? miss is worse when in high gear.

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  • Richard Scordino May 11, 2010

    anything is possible...its a machine. Test to verify.

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Having problems with cylinder one and two miss fire 2003 ford expedition 4.6 l

Posted on Sep 26, 2011

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There isn't a trouble code that indicates a bad coil... there are misfire codes that can possibly lead to a plug, coil, fuel injector, low compression, or a number of other things. it is possible to have 2 more bad coils-if youve had the engine compartment detailed and they got them wet, that'll do it. other than that it is hard to see 2 coils going at 1 time. spark plugs themselves are more likely.

Posted on May 27, 2009

  • rob jelks Sep 26, 2011

    i have changed both coils and the spark plugs, and checked the injectors and still having the same problems.

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